Thursday, February 9, 2012
Thurs-Day 1
AP Chem - we completed two solid-gas equilibrium problems, using the ICE organizer but also using the ideal gas law- the ONLY means of determining relative moles of gases and solids produced or used up.
We then saw that adding ANY solid to a solid-gas equilibrium mixture does NOTHING to the equilibrium partial pressures of any gases in the mixture. The added solid amount is just the NET increase in the solid mass at equilibrium i.e. BOTH forward and reverse reaction rates are instantaneously EQUALLY affected.
We then introduced a simple, three-step process for predicting (BUT NOT EXPLAINING) equilibrium shifts in an equilibrium system subject to a kinetic STRESS (changes in concentration, temperature, etc.)
Bio - we explained the cell-mediated , T-cell activated immune response in which pathogens or infected cells are directly bound and digested. We also explained the blood (humoral) mediated, B-cell activated antibody producing immune response in which antibodies bind to and mark for digestion, clumps of pathogens or infected cells. Both of these responses are specific to one type of pathogen based on its specific foreign antigen proteins.
Both of these responses are forms of acquired, active immunity (not innate or born with, not passive transfusion of antibodies).
We then saw that adding ANY solid to a solid-gas equilibrium mixture does NOTHING to the equilibrium partial pressures of any gases in the mixture. The added solid amount is just the NET increase in the solid mass at equilibrium i.e. BOTH forward and reverse reaction rates are instantaneously EQUALLY affected.
We then introduced a simple, three-step process for predicting (BUT NOT EXPLAINING) equilibrium shifts in an equilibrium system subject to a kinetic STRESS (changes in concentration, temperature, etc.)
Bio - we explained the cell-mediated , T-cell activated immune response in which pathogens or infected cells are directly bound and digested. We also explained the blood (humoral) mediated, B-cell activated antibody producing immune response in which antibodies bind to and mark for digestion, clumps of pathogens or infected cells. Both of these responses are specific to one type of pathogen based on its specific foreign antigen proteins.
Both of these responses are forms of acquired, active immunity (not innate or born with, not passive transfusion of antibodies).
# posted by C @ 7:57 PM 
